From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: "Cousson, Benoit" <b-cousson@ti.com>
Cc: Grant Likely <grant.likely@secretlab.ca>,
"Hilman, Kevin" <khilman@ti.com>, Paul Walmsley <paul@pwsan.com>,
"G, Manjunath Kondaiah" <manjugk@ti.com>,
"devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>,
"Nayak, Rajendra" <rnayak@ti.com>,
linux-omap <linux-omap@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: How to handle named resources with DT?
Date: Tue, 9 Aug 2011 20:51:14 +0100 [thread overview]
Message-ID: <20110809195114.GB14281@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <4E40FC88.5090403@ti.com>
On Tue, Aug 09, 2011 at 11:23:20AM +0200, Cousson, Benoit wrote:
> Hi Grant,
>
> Trying to bind hwmod informations with DT, I'm facing a little limitation.
> A bunch of drivers are using the platform_get_resource_byname, so the
> name for the resource is needed.
>
> The name is used so far for IORESOURCE_MEM, IORESOURCE_IRQ and
> IORESOURCE_DMA types of resources.
>
> Do you have any plan to add that, or do you have any clean way to avoid
> that without having to use the resource index?
Named resources are evil. You only have to look at /proc/iomem to see
why that's the case. Here's an example:
b7a01000-b7a01003 : set
b7a01000-b7a01003 : set
b7a01004-b7a01007 : dat
b7a01004-b7a01007 : dat
b7a01008-b7a0100b : dirout
b7a01008-b7a0100b : dirout
b7a01020-b7a01023 : set
b7a01020-b7a01023 : set
b7a01024-b7a01027 : dat
b7a01024-b7a01027 : dat
b7a01028-b7a0102b : dirout
b7a01028-b7a0102b : dirout
b7a01040-b7a01043 : set
b7a01040-b7a01043 : set
b7a01044-b7a01047 : dat
b7a01044-b7a01047 : dat
b7a01048-b7a0104b : dirout
b7a01048-b7a0104b : dirout
b7a01060-b7a01063 : set
b7a01060-b7a01063 : set
b7a01064-b7a01067 : dat
b7a01064-b7a01067 : dat
b7a01068-b7a0106b : dirout
b7a01068-b7a0106b : dirout
b7a01080-b7a01083 : set
b7a01080-b7a01083 : set
b7a01084-b7a01087 : dat
b7a01084-b7a01087 : dat
b7a01088-b7a0108b : dirout
b7a01088-b7a0108b : dirout
How very informative. Not. So what device owns those? Who knows,
that's lost by the crappy named resource stuff.
next prev parent reply other threads:[~2011-08-09 19:51 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-09 9:23 How to handle named resources with DT? Cousson, Benoit
2011-08-09 16:29 ` G, Manjunath Kondaiah
2011-08-09 16:57 ` Cousson, Benoit
2011-08-09 17:23 ` Grant Likely
2011-08-09 17:47 ` Cousson, Benoit
2011-08-09 17:52 ` Matt Porter
2011-08-09 18:26 ` Scott Wood
2011-08-09 20:57 ` Grant Likely
[not found] ` <20110809205723.GE11568-e0URQFbLeQY2iJbIjFUEsiwD8/FfD2ys@public.gmane.org>
2011-08-09 21:08 ` Cousson, Benoit
2011-08-09 21:17 ` Grant Likely
2011-08-09 21:44 ` Cousson, Benoit
2011-08-09 21:49 ` Grant Likely
2011-08-09 21:53 ` Cousson, Benoit
2011-08-10 1:52 ` David Gibson
2011-08-10 7:11 ` Paul Walmsley
[not found] ` <20110810015214.GD23511-787xzQ0H9iQXU02nzanrWNbf9cGiqdzd@public.gmane.org>
2011-08-10 15:01 ` Cousson, Benoit
2011-08-10 15:18 ` Scott Wood
[not found] ` <4E42A14B.9050308-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
2011-08-10 15:21 ` Cousson, Benoit
2011-08-10 19:22 ` Grant Likely
2011-08-10 19:57 ` David Brown
2011-08-10 20:12 ` Grant Likely
2011-08-11 12:28 ` Cousson, Benoit
2011-08-12 3:02 ` David Gibson
[not found] ` <20110812030218.GP30552-787xzQ0H9iQXU02nzanrWNbf9cGiqdzd@public.gmane.org>
2011-08-12 8:14 ` Cousson, Benoit
2011-08-12 8:41 ` Felipe Balbi
[not found] ` <20110812084106.GC19467-UiBtZHVXSwEVvW8u9ZQWYwjfymiNCTlR@public.gmane.org>
2011-08-12 14:35 ` Arnd Bergmann
2011-08-12 15:09 ` Cousson, Benoit
2011-08-12 17:21 ` Grant Likely
2011-08-24 19:15 ` Kevin Hilman
2011-08-24 23:16 ` Felipe Balbi
[not found] ` <20110824231613.GC19890-UiBtZHVXSwEVvW8u9ZQWYwjfymiNCTlR@public.gmane.org>
2011-08-25 10:28 ` Russell King - ARM Linux
[not found] ` <20110825102824.GB10405-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2011-08-25 15:05 ` Arnd Bergmann
2011-08-25 18:16 ` Kevin Hilman
2011-08-25 21:02 ` Arnd Bergmann
2011-08-26 11:01 ` Removing platform_get_resource_byname() (was Re: How to handle named resources with DT?) Paul Walmsley
2011-08-26 4:12 ` How to handle named resources with DT? David Gibson
[not found] ` <20110826041200.GD2308-787xzQ0H9iQXU02nzanrWNbf9cGiqdzd@public.gmane.org>
2011-08-26 10:58 ` Arnd Bergmann
2011-08-26 13:06 ` David Gibson
2011-08-26 15:35 ` Arnd Bergmann
[not found] ` <201108261735.55412.arnd-r2nGTMty4D4@public.gmane.org>
2011-08-26 15:41 ` Arnd Bergmann
2011-08-27 14:37 ` David Gibson
2011-08-27 18:13 ` Arnd Bergmann
2011-08-27 19:31 ` Paul Walmsley
2011-08-29 17:16 ` Arnd Bergmann
2011-08-28 8:39 ` David Gibson
2011-08-28 23:06 ` Paul Walmsley
[not found] ` <alpine.DEB.2.00.1108281100150.23968-rwI8Ez+7Ko+d5PgPZx9QOdBPR1lH4CV8@public.gmane.org>
2011-08-28 23:43 ` Russell King - ARM Linux
2011-08-29 1:57 ` Paul Walmsley
2011-08-29 17:18 ` Arnd Bergmann
2011-08-27 21:47 ` Paul Walmsley
[not found] ` <alpine.DEB.2.00.1108271444240.23968-rwI8Ez+7Ko+d5PgPZx9QOdBPR1lH4CV8@public.gmane.org>
2011-08-29 21:54 ` Mark Brown
2011-08-26 14:13 ` Cousson, Benoit
2011-08-30 2:29 ` David Gibson
2011-08-30 9:27 ` Felipe Balbi
[not found] ` <20110830092722.GG23907-UiBtZHVXSwEVvW8u9ZQWYwjfymiNCTlR@public.gmane.org>
2011-08-31 2:32 ` David Gibson
2011-08-27 20:00 ` Paul Walmsley
2011-08-25 17:38 ` Cousson, Benoit
2011-08-09 21:52 ` Scott Wood
2011-08-09 20:55 ` Grant Likely
2011-08-09 21:06 ` Cousson, Benoit
2011-08-09 21:16 ` Grant Likely
2011-08-09 21:37 ` Cousson, Benoit
2011-08-12 4:10 ` Shawn Guo
2011-08-12 8:56 ` Cousson, Benoit
2011-08-12 11:47 ` Shawn Guo
2011-08-12 14:40 ` Arnd Bergmann
2011-08-10 1:29 ` David Gibson
2011-08-10 6:08 ` Paul Walmsley
2011-08-09 19:51 ` Russell King - ARM Linux [this message]
2011-08-09 20:59 ` Cousson, Benoit
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